- English Name : Spotted surgeonfish
- Local Name : Thijjehi kaalhu
- Size : Max. 18.5 cm
- Family : ACANTHURIDAE
- Order : Perciformes
- Distinctive Characters: Dorsal fin with 8 spines and 25-27 rays. Anal fin with 3 spines and 22-25 rays. Pectoral rays 15-16. Body depth 1.7-2.0 in standard length. Teeth movable. Caudal fin slightly emarginate.
- Colour: Dark brown with pale blue dots on head and body, the dots sometimes join to form irregular lines; eye rimmed with yellow. Juveniles bright yellow.
- Habitat and Biology: Occurs in coral reefs to depths of 50 m. Found in large aggregations. Distribution: Indo-Pacific.
- Remarks: Ctenochaetus strigosus is very similar to C. striatus (previous page), but the two are easily distinguished in the field on the basis of tail shape. Colour and caudal fin shape varies with locality.